// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_EVENTS_TEST_TEST_EVENT_TARGETER_H_
#define UI_EVENTS_TEST_TEST_EVENT_TARGETER_H_

#include "base/compiler_specific.h"
#include "base/macros.h"
#include "ui/events/event_targeter.h"

namespace ui {
namespace test {

    class TestEventTarget;

    // An EventTargeter which is used to allow a bubbling behaviour in event
    // dispatch: if an event is not handled after being dispatched to its
    // |initial_target|, the event is dispatched to the next-best target as
    // specified by FindNextBestTarget().
    // Bubbling behaviour is controlled by |should_bubble| at creation time.
    class TestEventTargeter : public EventTargeter {
    public:
        TestEventTargeter(TestEventTarget* initial_target, bool should_bubble);
        ~TestEventTargeter() override;

        void set_target(TestEventTarget* target);

    private:
        // EventTargeter:
        EventTarget* FindTargetForEvent(EventTarget* root, Event* event) override;
        EventTarget* FindNextBestTarget(EventTarget* previous_target,
            Event* event) override;

        TestEventTarget* target_;
        bool should_bubble_;

        DISALLOW_COPY_AND_ASSIGN(TestEventTargeter);
    };

} // namespace test
} // namespace ui

#endif // UI_EVENTS_TEST_TEST_EVENT_TARGETER_H_
